man SbVec2s (Fonctions bibliothèques) -

NAME

SbVec2s -

SYNOPSIS



#include <Inventor/SbLinear.h>

Detailed Description

The SbVec2s class is a 2 dimensional vector with short integer coordinates.

This vector class is used by many other classes in Coin. It provides storage for a vector in 2 dimensions as well as simple integer arithmetic operations.

See also: SbVec3s, SbVec2f, SbVec3f, SbVec4f.

Public Member Functions

SbVec2s (void)

SbVec2s (const short v[2])

SbVec2s (const short x, const short y)

int32_t dot (const SbVec2s &v) const

const short * getValue (void) const

void getValue (short &x, short &y) const

void negate (void)

SbVec2s & setValue (const short v[2])

SbVec2s & setValue (short x, short y)

short & operator[] (const int i)

const short & operator[] (const int i) const

SbVec2s & operator *= (int d)

SbVec2s & operator *= (double d)

SbVec2s & operator/= (int d)

SbVec2s & operator/= (double d)

SbVec2s & operator+= (const SbVec2s &u)

SbVec2s & operator-= (const SbVec2s &u)

SbVec2s operator- (void) const

void print (FILE *fp) const

Friends

SbVec2s operator * (const SbVec2s &v, int d)

SbVec2s operator * (const SbVec2s &v, double d)

SbVec2s operator * (int d, const SbVec2s &v)

SbVec2s operator * (double d, const SbVec2s &v)

SbVec2s operator/ (const SbVec2s &v, int d)

SbVec2s operator/ (const SbVec2s &v, double d)

SbVec2s operator+ (const SbVec2s &v1, const SbVec2s &v2)

SbVec2s operator- (const SbVec2s &v1, const SbVec2s &v2)

int operator== (const SbVec2s &v1, const SbVec2s &v2)

int operator!= (const SbVec2s &v1, const SbVec2s &v2)

Constructor & Destructor Documentation

SbVec2s::SbVec2s (void)

The default constructor does nothing. The vector coordinates will be uninitialized until you do a setValue().

SbVec2s::SbVec2s (const short v[2])

Constructs an SbVec2s instance with initial values from v.

SbVec2s::SbVec2s (const short x, const short y)

Constructs an SbVec2s instance with the initial vector endpoints from x and y.

Member Function Documentation

int32_t SbVec2s::dot (const SbVec2s & v) const

Calculates and returns the result of taking the dot product of this vector and v.

const short * SbVec2s::getValue (void) const

Returns a pointer to an array of two floats containing the x and y coordinates of the vector.

See also: setValue().

void SbVec2s::getValue (short & x, short & y) const

Returns the x and y coordinates of the vector.

See also: setValue().

void SbVec2s::negate (void)

Negate the vector (i.e. point it in the opposite direction).

SbVec2s & SbVec2s::setValue (const short v[2])

Set new x and y coordinates for the vector from v. Returns reference to self.

See also: getValue().

SbVec2s & SbVec2s::setValue (short x, short y)

Set new x and y coordinates for the vector. Returns reference to self.

See also: getValue().

short & SbVec2s::operator[] (const int i)

Index operator. Returns modifiable x or y coordinate.

See also: getValue() and setValue().

const short & SbVec2s::operator[] (const int i) const

Index operator. Returns x or y coordinate.

See also: getValue().

SbVec2s & SbVec2s::operator *= (int d)

Multiply components of vector with value d. Returns reference to self.

SbVec2s & SbVec2s::operator *= (double d)

Multiply components of vector with value d. Returns reference to self.

SbVec2s & SbVec2s::operator/= (int d)

Divides components of vector with value d. Returns reference to self.

SbVec2s & SbVec2s::operator/= (double d)

Divides components of vector with value d. Returns reference to self.

SbVec2s & SbVec2s::operator+= (const SbVec2s & u)

Adds this vector and vector u. Returns reference to self.

SbVec2s & SbVec2s::operator-= (const SbVec2s & u)

Subtracts vector u from this vector. Returns reference to self.

SbVec2s SbVec2s::operator- (void) const

Non-destructive negation operator. Returns a new SbVec2s instance which points in the opposite direction of this vector.

See also: negate().

void SbVec2s::print (FILE * fp) const

Dump the state of this object to the file stream. Only works in debug version of library, method does nothing in an optimized compile.

Friends And Related Function Documentation

SbVec2s operator * (const SbVec2s & v, int d) [friend]

Returns an SbVec2s instance which is the components of vector v multiplied with d.

SbVec2s operator * (const SbVec2s & v, double d) [friend]

Returns an SbVec2s instance which is the components of vector v multiplied with d.

SbVec2s operator * (int d, const SbVec2s & v) [friend]

Returns an SbVec2s instance which is the components of vector v multiplied with d.

SbVec2s operator * (double d, const SbVec2s & v) [friend]

Returns an SbVec2s instance which is the components of vector v multiplied with d.

SbVec2s operator/ (const SbVec2s & v, int d) [friend]

Returns an SbVec2s instance which is the components of vector v divided on d.

SbVec2s operator/ (const SbVec2s & v, double d) [friend]

Returns an SbVec2s instance which is the components of vector v divided on d.

SbVec2s operator+ (const SbVec2s & v1, const SbVec2s & v2) [friend]

Returns an SbVec2s instance which is the sum of vectors v1 and v2.

SbVec2s operator- (const SbVec2s & v1, const SbVec2s & v2) [friend]

Returns an SbVec2s instance which is vector v2 subtracted from vector v1.

int operator== (const SbVec2s & v1, const SbVec2s & v2) [friend]

Returns 1 if v1 and v2 are equal, 0 otherwise.

int operator!= (const SbVec2s & v1, const SbVec2s & v2) [friend]

Returns 1 if v1 and v2 are not equal, 0 if they are equal.

Author

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